In researching the many additional challenges associated with fuel
cells the T-5 Group (a Think Tank) noted an issue with the way that
Fuel Cells work. In the heat conversion process there seems to be a
problem with the amount of heat they generate.
If the World is truly concerned with Global Warming then all those
hydrogen cells will heat things up. In Urban areas this will
exacerbate an already difficult situation with Urban Heat issues
causing increased storm and weather intensities.
Consider the incredible challenge to minimize heat escaping on 10s of
millions of Hydrogen Cell Vehicles on America's highways and in urban
metro areas causing urban heat and the global warming concerns, as the
number of Hydrogen Vehicles across the country increase over the next
four decades.
All being true adds to the dilemma of "The Hydrogen
Economy" (recommended reading list). It is also the case that in most
of mankind's dilemmas we find the laws of unintended consequences. The
fact that hydrogen cells puts out 400 to 1200 degrees of heat or more,
which is a problem if all the vehicles are powered by hydrogen cell
because of the greater heat footprint....

http://groups.google.com/group/waterforfueld